title: Intraductal ultrasonography and endoscopic retrograde cholangiography in diagnosis of extrahepatic bile duct stones: a comparative study.
mesh_terms: D000328:Adult; D000368:Aged; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D001651:Cholestasis, Extrahepatic / Q000000981:diagnostic imaging* / Q000601:surgery; D019160:Endosonography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D042882:Gallstones / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D016717:Sphincterotomy, Endoscopic / Q000379:methods; D016896:Treatment Outcome